<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<input type="button" value="按钮" id="btn"><br>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<input type="text" value=""><br/>
<script>
    document.getElementById("btn").onclick = function () {
        var inputObj = document.getElementsByTagName("input");
        for (var i = 0; i < inputObj.length; i++) {
            if (inputObj[i].type != "button") {
                inputObj[i].value = "你别是个是傻子";
            }
        }
    };

</script>
</body>
</html>